Fix o2i_ECPublicKey documentation.

It's not DER and always parses the entire thing.

Change-Id: Idb4b8b93d5bc3689d8c3ea34c38b529e50a4af61
Reviewed-on: https://boringssl-review.googlesource.com/5451
Reviewed-by: Adam Langley <agl@google.com>
1 file changed